Comet vs Grok: pricing and free tier side by side

Comet vs Grok

Amo and Pimi: Which one to choose between these two

Pimi

Amo, let me raise a white flag on one thing first — I've dug and dug for Grok's pricing and still can't get it. grok.com/pricing has been stuck behind a 403 or Cloudflare human-verification wall every day from July 25th through today, August 8th — no official first-party figure is obtainable at all.

Amo

Wait, so the SuperGrok US$30/month, X Premium+ US$40/month, and SuperGrok Heavy US$300/month listed on the site are all unconfirmed by the official site?

Pimi

Right, it's all pieced together from third-party comparison sites. Comet, on the other hand, has its free policy and paid pricing written directly on perplexity.ai/comet by the company itself — the confidence level isn't even in the same league.

Amo

Then let me put it bluntly — if you can't even get to the official site, I won't do a precise price comparison for Grok against anything. At most I'll say "a third-party source claims SuperGrok's monthly fee is more expensive than Comet Pro's (US$20/month)," for reference only.

Pimi

The free tier is even more awkward – Grok's free tier has a limited quota, but the official site doesn't publish a specific number either; Comet's free tier, on the other hand, has completely unlimited basic AI features – quite a contrast.

Amo

Contrast aside, I'll just pick one more solid point to mention: a third-party source says SuperGrok Heavy's first-3-months promotional price is US$99/month — if that's true, it's still cheaper than Comet Max's US$200/month, but again, there's no official confirmation.

Pimi

Alright, let's wrap it up like this: Comet's data is reliable, while Grok's data is currently all flagged "unverifiable, for reference only." Before choosing a tool, we'd recommend checking Grok's official site yourself for the current price.

So the conclusion is

Important reminder: The Grok official website (grok.com/pricing) has been checked multiple times since 2026-07-25 and consistently returns a 403 error or a Cloudflare verification page. As of 2026-08-08, it is still unable to confirm any prices firsthand. The numbers on the site, such as SuperGrok US$30/month, X Premium+ US$40/month, and SuperGrok Heavy US$300/month (promotional price of US$99/month for the first 3 months), all come from third-party comparison websites and have not been officially confirmed. Please verify on the official website yourself. In contrast, Comet's free and paid policies (basic AI functions have been free and unlimited since 2026-03-18, Pro US$20/month, and Max US$200/month) have been directly confirmed by perplexity.ai/comet. There is a huge difference in the credibility of the data between the two, and this should be taken into account when comparing them.

本則評論查證於 2026-08-08 22:30 （14 天前） ，價格與額度以官方最新公告為準。

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Comet and Grok are both Chatbots tools. Pricing, free tiers and language support compared below.

Full paid plans compared

Comet

Grok

Which one should you pick?

Both offer a free plan. Compare paid tiers against your needs.

On entry price, Comet starts at US$5 / mo, cheaper than Grok (US$10 / mo).

FAQ

Is there a free version of Comet?

Yes. The complete Chromium browser with basic AI functions (page summary, voice mode, shopping assistant, Deep Research) is completely free and has no usage limit (globally available starting October 2, 2025); however, agent tasks that consume quota (such as auto-form filling, booking, and emailing) have limited quota in the free plan.

How much does Comet cost?

The cheapest is the plan from Comet named Comet Plus, at about US$5 / mo.

Does Comet support Chinese?

Comet only partially supports Chinese.

Is there a free version of Grok?

Yes. The official site publishes no concrete usage figures at all for the free tier, and this site does not fill in an estimate. Verification trail (exhausted): grok.com/pricing returns HTTP 200 but the whole page is rendered by JavaScript, so the static HTML contains no plan names or price text, only Stripe price IDs; opening it in a real browser hits a Cloudflare human-verification wall, which we do not bypass; x.ai/grok returned 403 three times in a row (blocked, not 404). What can be confirmed: free use does exist and is US$0, because in the in-app purchase list on the official Apple App Store listing every paid item belongs to the SuperGrok range, so basic chat requires no payment. Third-party felloai.com states plainly that xAI has never published free-tier numbers anywhere, and says the free tier only gets the lighter Grok 4 Mini, includes basic real-time web and X search, has limited voice mode, and that image and video generation were removed from the free tier on 2026-03-19. The widely circulated figure of about 10 messages every 2 hours has no official backing and is not used here. (Verified 2026-08-09)

How much does Grok cost?

The cheapest is the plan from Grok named SuperGrok Lite, at about US$10 / mo.

Does Grok support Chinese?

Grok only partially supports Chinese.